With the GOP primary just a month away, U.S. Sen. John McCain is pulling further away from rival J.D. Hayworth, and Rasmussen Reports is no longer listing the incumbent senator as vulnerable to an upset from his conservative challenger.

Sure, Congress historically swings away from a first-term president’s party during the off-year election. But former U.S. House Member J.D. Hayworth is betting on such a dramatic swing of the pendulum that he will be able to topple fellow Republican Sen. John McCain.